Coffee grinder



FIG. 1 is a perspective view of a coffee grinder according to the present invention;

FIG. 2 is a front view of a coffee grinder of FIG. 1;

FIG. 3 is a rear view of a coffee grinder of FIG. 1;

FIG. 4 is a side view, the opposite side view being symmetric thereto, of the coffee grinder of FIG. 1; and,

FIG. 5 is a top view of a coffee grinder of FIG. 1. 

The ornamental design for a coffee grinder, as shown and described. 